Human/Mouse/Rat MKK3 Antibody

Catalog # Availability Size / Price Qty
Detection of Human/Mouse/Rat MKK3 by Western Blot.
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Product Details
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Human/Mouse/Rat MKK3 Antibody Summary

Species Reactivity
Human, Mouse, Rat
Detects human MKK3 in direct ELISAs and Western blots. In Western blots, no cross-reactivity with recombinant human MKK6 is observed.
Monoclonal Mouse IgG2B Clone # 275909
Protein A or G purified from hybridoma culture supernatant
E. coli-derived recombinant human MKK3
Accession # P46734
Supplied as a 0.2 μm filtered solution in PBS. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

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Recommended Concentration
Western Blot
1 µg/mL
See below
15-30 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot Detection of Human/Mouse/Rat MKK3 antibody by Western Blot. View Larger

Detection of Human/Mouse/Rat MKK3 by Western Blot. Western blot shows lysates of MDA-MB-468 human breast cancer cell line, TS1 mouse helper T cell line, and NRK rat normal kidney cell. PVDF membrane was probed with 1 µg/mL Mouse Anti-Human/Mouse/Rat MKK3 Monoclonal Antibody (Catalog # MAB2515) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). For additional reference, recombinant human MKK3 and MKK6 (2 ng/lane) were included. A specific band for MKK3 was detected at approximately 40 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Immunocytochemistry MKK3 antibody in HeLa Human Cell Line by Immunocytochemistry (ICC). View Larger

MKK3 in HeLa Human Cell Line. MKK3 was detected in immersion fixed HeLa human cervical epithelial carcinoma cell line using Mouse Anti-Human/Mouse/Rat MKK3 Monoclonal Antibody (Catalog # MAB2515) at 25 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm and nuclei. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

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Preparation and Storage

The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C, as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after opening.
  • 6 months, -20 to -70 °C under sterile conditions after opening.

Background: MKK3

Mitogen-activated protein kinase kinase 3 (MKK3), also known as MEK3, and the closely related MKK6 are activated by proinflammatory cytokines and environmental stresses. Activation occurs through phosphorylation by several upstream MAPK kinase kinases, including ASK1 and TAK1. Both MKK3 and MKK6 are dual specificity protein kinases, phosphorylating and activating the p38 MAP kinases at Thr and Tyr positions within the phosphoacceptor sequence Thr-Gly-Tyr.

Long Name
Mitogen-activated Protein Kinase Kinase 3
Entrez Gene IDs
5606 (Human); 26397 (Mouse); 303200 (Rat)
Alternate Names
MAP kinase kinase 3; MAP2K3; MAPK/ERK kinase 3; MAPKK 3; MAPKK3PRKMK3dual specificity mitogen-activated protein kinase kinase 3; MEK3; MEK3MEK 3; mitogen activated protein kinase kinase 3; mitogen-activated protein kinase kinase 3; MKK3; MKK3EC; PRKMK3

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Product Specific Notices

The purchase of this product conveys to the buyer the limited, non-exclusive, non-transferable right (without the right to resell, repackage, or further sublicense) to use these reagents for research purposes only. No other license is granted to the buyer whether expressly, by implication, by estoppel or otherwise. In particular, the purchase of this product does not include nor carry any right or license to use, develop, or otherwise exploit this product commercially, which includes without limitation, provision of services to a third party, generation of commercial databases, clinical diagnostics or therapeutics, or drug development. This product is sold pursuant to a license from the University of Massachusetts, and the University of Massachusetts reserves all other rights to use these reagents. For information on purchasing a license for uses other than research, please contact the University of Massachusetts, Office of Technology Management, 333 South Street, Suite 400, Shrewsbury, Massachusetts, 01545.


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Isotype Controls

Secondary Antibodies

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